| Variable | Axis 1 | Axis 2 |
| Metamorphosis—Water Quality in Spring Peepers 2014 | ||
| Eigenvalue (λ) | 0.0002 | 0.00002 |
| % variance explained | 16.21 | 1.13 |
| p-value | 0.638 |
|
| DO | −0.2880 | 0.7380 |
| pH | 0.1758 | 0.5699 |
| Conductivity | 0.2945 | −0.2118 |
| Temperature | 0.4257 | 0.6679 |
| Nitrogen | 0.5095 | 0.1836 |
| Metamorphosis—Water Quality in Spring Peepers 2015 | ||
| Eigenvalue (λ) | 0.0010 | 0.00002 |
| % variance explained | 42.86 | 0.65 |
| p-value | 0.107 |
|
| DO | −0.1927 | 0.7597 |
| pH | −0.1669 | 0.5406 |
| Conductivity | −0.4335 | 0.0075 |
| Temperature | 0.2089 | −0.4201 |
| Nitrogen | 0.0080 | −0.5195 |
| Phosphorus | −0.2875 | −0.5692 |
| Alkalinity | 0.1033 | −0.2088 |
| Metamorphosis—Water Quality in Wood Frogs 2014 | ||
| Eigenvalue (λ) | 0.0001 | 0.000001 |
| % variance explained | 21.51 | 0.21 |
| p-value | 0.399 |
|
| DO | 0.0972 | 0.4745 |
| pH | 0.6447 | 0.3232 |
| Conductivity | 0.3785 | 0.7592 |
| Temperature | 0.1036 | −0.1978 |
| Nitrogen | −0.1414 | 0.2983 |
| Metamorphosis—Water Quality in Wood Frogs 2015 | ||
| Eigenvalue (λ) | 0.0018 | 0.00004 |
| % variance explained | 64.30 | 1.58 |
| p value | 0.004* |
|
| DO | 0.4715 | 0.6856 |
| pH | 0.2929 | 0.5543 |
| Conductivity | 0.0607 | 0.2909 |
| Temperature | 0.0116 | −0.1441 |
| Nitrogen | 0.5007 | −0.7826 |
| Phosphorus | 0.6612 | −0.5293 |
| Alkalinity | 0.1755 | 0.1909 |